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<article article-type="research-article" dtd-version="1.3" xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xml:lang="ru"><front><journal-meta><journal-id journal-id-type="publisher-id">agronauka</journal-id><journal-title-group><journal-title xml:lang="ru">Аграрная наука Евро-Северо-Востока</journal-title><trans-title-group xml:lang="en"><trans-title>Agricultural Science Euro-North-East</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">2072-9081</issn><issn pub-type="epub">2500-1396</issn><publisher><publisher-name>FARC North-East</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.30766/2072-9081.2024.25.3.395-406</article-id><article-id custom-type="elpub" pub-id-type="custom">agronauka-1668</article-id><article-categories><subj-group subj-group-type="heading"><subject>Research Article</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="ru"><subject>ОРИГИНАЛЬНЫЕ СТАТЬИ. ЗАЩИТА РАСТЕНИЙ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>ОRIGINAL SCIENTIFIC ARTICLES. PLANT PROTECTION</subject></subj-group></article-categories><title-group><article-title>Перспективы применения различных видов и штаммов симбиотических бактерий (Xenorhabdus sp.) в биологической защите картофеля от болезней в условиях Европейского Севера России</article-title><trans-title-group xml:lang="en"><trans-title>Prospects for the use of various species and strains of symbiotic bacteria (Xenorhabdus sp.) in the biological protection of potatoes from diseases in the European North of Russia</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-9770-0809</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Котова</surname><given-names>З. П.</given-names></name><name name-style="western" xml:lang="en"><surname>Kotova</surname><given-names>Z. P.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Котова Зинаида Петровна, доктор с.-х. наук, ведущий научный сотрудник отдела земледелия и растениеводства</p><p>ш. Подбельского, д. 7, г. Пушкин, г. Санкт-Петербург, 196608</p></bio><bio xml:lang="en"><p>Zinaida P. Kotova, DSc in Agricultural Science, leading researcher, the Department of Agriculture and Crop Production</p><p>sh. Podbelsky, 7, Saint-Petersburg, 196608</p></bio><email xlink:type="simple">zinaida_kotova@mail.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-1919-0695</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Данилова</surname><given-names>Т. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Danilova</surname><given-names>T. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Данилова Татьяна Алексеевна, кандидат с.-х. наук, ведущий научный сотрудник отдела земледелия и растениеводства</p><p>ш. Подбельского, д. 7, г. Пушкин, г. Санкт-Петербург, 196608</p></bio><bio xml:lang="en"><p>Tatyana A. Danilova, PhD in Agricultural Science, leading researcher, the Department of Agriculture and Crop Production</p><p>sh. Podbelsky, 7, Saint-Petersburg, 196608</p></bio><email xlink:type="simple">n-wcirpfm@spcras.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-3623-1081</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Данилов</surname><given-names>Л. Г.</given-names></name><name name-style="western" xml:lang="en"><surname>Danilov</surname><given-names>L. G.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Данилов Леонид Григорьевич, доктор с.-х. наук, ведущий научный сотрудник лаборатории микробиологической защиты растений</p><p>ш. Подбельского, д. 3, г. Пушкин, г. Санкт-Петербург, 196608</p></bio><bio xml:lang="en"><p>Leonid G. Danilov, DSc in Agricultural Science, leading  researcher, the Laboratory of Microbiological Plant  Protection</p><p>3, sh. Podbelsky, Pushkin, Saint-Petersburg, 196608</p></bio><email xlink:type="simple">info@vizr.spb.ru</email><xref ref-type="aff" rid="aff-2"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-6903-6971</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Архипов</surname><given-names>М. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Arkhipov</surname><given-names>M. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Архипов Михаил Вадимович, доктор биол. наук, главный научный сотрудник отдела земледелия и растениеводства</p><p>ш. Подбельского, д. 7, г. Пушкин, г. Санкт-Петербург, 196608</p></bio><bio xml:lang="en"><p>Mikhail V. Arkhipov, DSc in Biological Science, chief researcher, the Department of Agriculture and Crop Production</p><p>sh. Podbelsky, 7, Saint-Petersburg, 196608</p></bio><email xlink:type="simple">n-wcirpfm@spcras.ru</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru">Северо-Западный Центр междисциплинарных исследований проблем продовольственного обеспечения − обособленное структурное подразделение ФГБУН «Санкт-Петербургский Федеральный исследовательский центр Российской&#13;
академии наук»<country>Россия</country></aff><aff xml:lang="en">North-West Centre of Interdisciplinary Researches of Problems of Food Maintenance, St. Petersburg Federal Research Center of the Russian Academy of Sciences<country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru">ФГБНУ «Всероссийский научно-исследовательский институт защиты растений»<country>Россия</country></aff><aff xml:lang="en">All-Russian Research Institute for Plant Protection<country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2024</year></pub-date><pub-date pub-type="epub"><day>26</day><month>06</month><year>2024</year></pub-date><volume>25</volume><issue>3</issue><fpage>395</fpage><lpage>406</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Котова З.П., Данилова Т.А., Данилов Л.Г., Архипов М.В., 2024</copyright-statement><copyright-year>2024</copyright-year><copyright-holder xml:lang="ru">Котова З.П., Данилова Т.А., Данилов Л.Г., Архипов М.В.</copyright-holder><copyright-holder xml:lang="en">Kotova Z.P., Danilova T.A., Danilov L.G., Arkhipov M.V.</copyright-holder><license license-type="creative-commons-attribution" xlink:href="https://creativecommons.org/licenses/by/4.0/" xlink:type="simple"><license-p>This work is licensed under a Creative Commons Attribution 4.0 License.</license-p></license></permissions><self-uri xlink:href="https://www.agronauka-sv.ru/jour/article/view/1668">https://www.agronauka-sv.ru/jour/article/view/1668</self-uri><abstract><p>Разработка экологически безопасных систем защиты растений от грибных патогенов с использованием симбиотических бактерий Xenorhabdus sp. – симбионтов энтомопатогенных нематод (ЭПН) в последние годы является новым направлением в сельскохозяйственной практике и несомненно представляет актуальность и научную значимость. В исследованиях использовали суспензии живых и автоклавированных культур симбиотических бактерийсимбионтов различных видов ЭПН (Steinernema carpocapsae, S. feltiae и S. feltiae protense) с титром бактериальных клеток 107 КОЕ/мл в сравнении с биологическим препаратом Фитоспорин-М (паста) и водой в качестве контроля. В лабораторных условиях при температуре 25 °С нами установлены различия в антибиотической активности первичных форм продуцентов Xenorhabdus sp., выделенных из различных видов ЭПН. Наибольшее ингибирование зоны роста гриба на 4-й день отмечено у метаболитов штамма S. carpocapsae в отношении Alternaria solani. Биологическая эффективность в подавлении этого патогена составила 51 %. Полевые исследования 2022-2023 гг. в условиях Республики Карелия на среднераннем сорте картофеля Ред Скарлетт, показали, что при эпифитотии (низкие температуры воздуха и избыточное переувлажнение) двукратное опрыскивание вегетирующих растений суспензией живых и автоклавированных культур симбиотических бактерий (ЭПН-1-1, ЭПН-2 и ЭПН-2-1) снижали развитие ризоктониоза по сравнению с контрольным вариантом на 50, 64 и 60 % соответственно. Установлено, что двукратная обработка живой и автоклавированной водной суспензией бактерий-симбионтов подвида S. Feltiae была более эффективна и обеспечивала уменьшение степени развития симптомов парши обыкновенной в 1,3–2,8 раза и распространение ризоктониоза в 1,5–2,0 раза. Выявлено также, что двукратное опрыскивание растений во время вегетации живой и автоклавированной суспензией симбиотических бактерий S. feltiae достоверно увеличивает урожайность клубней на 35–22 % соответственно. Таким образом, использование биологически активных вторичных метаболитов Xenorhabdus sp. в качестве биологических средств защиты растений от возбудителей заболеваний на картофеле имеет значительный потенциал.</p></abstract><trans-abstract xml:lang="en"><p>Research on the development of environmentally friendly plant protection systems against fungal pathogens using symbiotic bacteria Xenorhabdus sp. – symbionts of entomopathogenic nematodes (EPN) has been a new direction in agricultural practice in recent years and undoubtedly represent relevance and scientific significance. The studies used suspensions of live and autoclaved cultures of symbiotic bacteria of symbionts of various types of EPN (Steinernema carpocapsae, S. feltiae and S. feltiae protense) with a bacterial cell titer of 107 CFU/ml in comparison with the biological preparation Phytosporin-M (dough) and water as a control. In laboratory conditions at a temperature of 25 oC, there were established differences in the antibiotic activity of the primary forms of producers of Xenorhabdus sp., isolated from different types of EPN. The greatest inhibition of the fungal growth zone on the 4th day was observed for metabolites of the S. carpocapsae strain against Alternaria solani. Biological effectiveness in suppressing this pathogen was 51 %. Field research conducted in 2022-2023 in the conditions of the Republic of Karelia on the mid-early potato variety ʻRed Scarlettʼ, showed that under epiphytotic conditions (low air temperatures and excessive waterlogging) double spraying of vegetative plants with a suspension of live and autoclaved cultures of symbiotic bacteria (EPN-1-1, EPN-2 and EPN-2 -1) reduced the development of rhizoctoniosis compared to the control variant by 50, 64 and 60 %, respectively. It was found that double treatment with a live and autoclaved aqueous suspension of bacteria, symbionts of the subspecies S. feltiae was more effective and ensured a reduction in the degree of development of scab symptoms by 1.3–2.8 times and the spread of rhizoctonia by 1.5–2.0 times. It has been also established that 2-fold spraying of plants with a live and autoclaved suspension of symbiotic bacteria S. feltiae during the growing season significantly increases the yield of tubers by 35–22 %, respectively. Thus, the use of biologically active secondary metabolites of Xenorhabdus sp. has significant potential as biological plant protection agents against potato pathogens.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>Xenorhabdus bovienii энтопатогенные нематоды</kwd><kwd>картофель</kwd><kwd>Streptomyces scabies (Thaxter) Waksman &amp; Henrici)</kwd><kwd>Rhizoctonia solani J. G. Kuhn</kwd><kwd>Phytophtora infestans (Montagne) de Bary</kwd><kwd>Phoma exigua var.exigua</kwd></kwd-group><kwd-group xml:lang="en"><kwd>Xenorhabdus bovienii entopathogenic nematodes</kwd><kwd>potato</kwd><kwd>Streptomyces scabies (Thaxter) Waksman &amp; Henrici</kwd><kwd>Rhizoctonia solani J. G. Kuhn</kwd><kwd>Phytophtora infestans (Montagne) de Bary</kwd><kwd>Phoma exigua var. exigua</kwd></kwd-group><funding-group xml:lang="ru"><funding-statement>работа выполнена при финансовой поддержке Российского научного фонда (грант № 24-26-20029), https://grant.rscf.ru/site/user/bids?role=master</funding-statement></funding-group><funding-group xml:lang="en"><funding-statement>the research was carried out under the financial support of the Russian Science Foundation (Grant No. 24-26-20029), https://grant.rscf.ru/site/user/bids?role=master</funding-statement></funding-group></article-meta></front><back><ref-list><title>References</title><ref id="cit1"><label>1</label><citation-alternatives><mixed-citation xml:lang="ru">Shapiro-Ilan D., Hazir S., Glazer I. Advances in use of entomopathogenic nematodes in integrated pest management. In: Kogan M., Heinrichs E. A. (eds). Integrated management of insect pests: current and future developments. Burleigh Dodds Science Publication. 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